Just a numbers observation.
The Jets will probably carry 10 DBs. 6 at CB, 4 at S.
Right now the have 4 safeties and 5 CBs. Can see them adding a CB late because the starters are as good a combo as there is.
Who would they drop at safety currently there? 4 decent guys. A late pick either goes to PS or a current guy goes. More likely they rely on some player's position flexibility to play both CB and S..
Just in case you're wondering about the roster. 9LB, 7 DL = 26 total on Def - just a guess. 8 OL, 3 TE, 5WR, 3 QB, 3 RB, 2 FB = 24